Chair part



FIG. 1 is a front view of a chair part showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a perspective view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a top view thereof.

The right side view is a mirror image of the left side. The bottom view is not seen during normal use. Therefore, both of them are omitted.

The broken lines represent the portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a chair part, as shown and described. 